Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to $10 minutes. a. The lambda of this distribution is b. The probability that the length of a phone call is longer than 12 is P(x 2 12) = c. The probability that the length of a phone call is shorter than 5 is P(x s 5) = d. The probability that the length of a phone call is between 8 and 14 is P(8 s x s 14) =| e. The 86th percentile is a phone call that lasts minutes.

Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to $10 minutes. a. The lambda of this distribution is b. The probability that the length of a phone call is longer than 12 is P(x 2 12) = c. The probability that the length of a phone call is shorter than 5 is P(x s 5) = d. The probability that the length of a phone call is between 8 and 14 is P(8 s x s 14) =| e. The 86th percentile is a phone call that lasts minutes.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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